A homegrown action film about a 16th-century Korean naval hero's astonishing victory over Japan exceeded 15 million in attendance on Tuesday for the first time in local Korean box-office history, the film's promoter said.

"Roaring Currents" hit the milestone at 1:30 p.m., the 21st day since it opened on July 30, 1st Look said, citing box-office figures from the Korean Film Council.

On Friday, it became the most-watched film movie at theaters in the country, breaking the previous record held by Hollywood blockbuster "Avatar" of 13.62 million.

Starring veteran actor Choi Min-shik, the historical drama tells the story of Joseon Dynasty (1392-1910) Admiral Yi Sun-shin's victory in the battle of Myeongnyang against Japan in 1597. In the decisive naval battle, Yi, who had 12 ships under his command, defeated more than 300 Japanese warships. (Yonhap)